nine incidents which resulted in discharges from the
wider wastewater network to waterways. Five of these incidents were related to pipe blockages or
breakages, two were related to mechanical or technical failures and two were related to power outages. No
unauthorised discharges were caused by high rainfall events during the year under review. The number of
incidents has continued to decrease from recent years (40 incidents in the 2014-2015 year, 24 in 2015-2016,
20 in 2016-2017 and 16 in
in the 2014-2016 monitoring
period.
A glossary of common abbreviations and scientific terms, and a bibliography, are
presented at the end of the report.
1.2 Compliance monitoring & the Resource Management Act 1991
The Resource Management Act 1991 (RMA) primarily addresses environmental ‘effects'
which are defined as positive or adverse, temporary or permanent, past, present or
future, or cumulative. Effects may arise in relation to:
(a) the neighbourhood or the wider
the plant. Current effluent application is considerably lower than previous
application rates. However nitrate concentrations in the soil profile underneath the
irrigation areas and in the tributaries flowing through or adjacent to the site remain
elevated.
A narrow but concentrated plume of ammonia is present in the groundwater and extends
from a previous leak in an effluent storage basin. This basin has since been repaired. A
second more recent and more concentrated ammonia plume extends
a bibliography, are
presented at the end of the report.
page
2
1.1.3 The Resource Management Act 1991 and monitoring
The Act primarily addresses environmental ‘effects’ which are defined as positive or
adverse, temporary or permanent, past, present or future, or cumulative. Effects may
arise in relation to:
(a) the neighbourhood or the wider community around a discharger, and may
include cultural and socio-economic effects;
(b) physical effects on the
tributary a result of the Company’s activities. Environmental performance by
Winstone Aggregates was high.
No incidents or complaints were reported in relation to operations carried out at the Winstone
Aggregate, Wiremu Road quarry.
For reference, in the 2012-2013 year, 35% of consent holders in Taranaki monitored through
tailored compliance monitoring programmes achieved a high level of environmental
performance and compliance with their consents, while another 59% demonstrated a good
presents recommendations to be implemented in the 2017-2018 monitoring year.
A glossary of common abbreviations and scientific terms, and a bibliography, are presented at the end of
the report.
1.1.3 The Resource Management Act 1991 and monitoring
The RMA primarily addresses environmental ‘effects’ which are defined as positive or adverse, temporary or
permanent, past, present or future, or cumulative. Effects may arise in relation to:
a. the neighbourhood or the wider community around
frequency of
contamination reduces water quality, and has the potential to have both chronic and acute
impacts on the stream biota, which either leads to fish emigration, or death. It is understood
that the lower stream catchment is earmarked for urban development, with some thought
being given to establishing a reserve and walkway, similar to that alongside the Mangati
Stream. While this has the potential to improve habitat conditions in the lower catchment, it is
page
presented at the end of the report.
1.1.3 The Resource Management Act (1991) and monitoring
The Resource Management Act primarily addresses environmental `effects' which
are defined as positive or adverse, temporary or permanent, past, present or future,
or cumulative. Effects may arise in relation to:
(a) the neighbourhood or the wider community around a discharger, and may
include cultural and socio-economic effects;
(b) physical effects on the locality, including landscape,
resource consents. There was no evidence of any issues with any injection well
or the ability of the receiving formation to accept injected fluids, during the period under review. The results
of groundwater quality monitoring undertaken show no adverse effects of the activity at monitored
locations. Inspections undertaken during the monitoring year found sites being operated in a professional
manner and there were no Unauthorised Incidents in relation to any of the Company’s DWI consents.
particulate deposition in the vicinity of the foundry site. No visible emissions or odour issues were noted
during inspections and no complaints were received during the period under review.
During the year, MASL demonstrated a high level of both environmental performance and administrative
compliance with the resource consents.
For reference, in the 2016-2017 year, consent holders were found to achieve a high level of environmental
performance and compliance for 74% of the consents monitored